• tumor infiltration is progressive throughout the uteri resulting in diffuse uterine enlargement with increasing age

• uteri develop normally and are normal in size through onset of sexual maturity, but by 16 weeks of age there is significant uterine enlargement; in females surviving to 28 weeks, the average uterine weight is increased around 10 fold relative to controls

• by 12 weeks of age, diffuse infiltration of the myometrium is observed in most animals

• tumor infiltration is progressive throughout the uteri resulting in diffuse uterine enlargement with increasing age

• uteri develop normally and are normal in size through onset of sexual maturity, but by 16 weeks of age there is significant uterine enlargement; in females surviving to 28 weeks, the average uterine weight is increased around 10 fold relative to controls

• by 12 weeks of age, diffuse infiltration of the myometrium is observed in most animals

• uteri develop normally and are normal in size through onset of sexual maturity, but by 16 weeks of age there is significant uterine enlargement; in females surviving to 28 weeks, the average uterine weight is increased around 10 fold relative to controls

• tumor infiltration is progressive throughout the uteri resulting in diffuse uterine enlargement with increasing age

• uteri develop normally and are normal in size through onset of sexual maturity, but by 16 weeks of age there is significant uterine enlargement; in females surviving to 28 weeks, the average uterine weight is increased around 10 fold relative to controls

• tumor infiltration is progressive throughout the uteri resulting in diffuse uterine enlargement with increasing age